Malicious PDF — malware analysis report

Static analysis result for SHA-256 d37459b91d639eb8…

MALICIOUS

PDF

32.5 KB Created: 2021-06-25 17:59:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 093e896d49e615d78a5d7c243b9f4ba3 SHA-1: e0150a67f753dde55b9558ce402bcbf148cca1c9 SHA-256: d37459b91d639eb84e1a235fa9372e37b02c8115be2c31430d6ef19150868fb1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, disguised as a free generator or game hack. This lure is intended to trick users into clicking the link, which then leads to further malicious content. The presence of multiple similar links suggests a campaign focused on driving traffic to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/479516143/free-minecraft-skin-maker-game-hack In PDF document text
    • http://greenoase.be/images/cipherv3-roblox-exploit-rocky-hacks-and-more_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/one-for-all-free-shop-t-schirts-roblox_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/free-robux-website-growbux_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/coin-master-2021_GM406889139.pdfIn PDF document text
    • http://greenoase.be/images/minecraft-xbox-one-free_GM479516143.pdfIn PDF document text
    • http://greenoase.be/images/free-robux-website_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/roblox-free-robux-slows-down-towards-100_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://greenoase.be/images/coin-master-hack-cheat-generator-d_GM406889139.pdfIn PDF document text
    • http://greenoase.be/images/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://greenoase.be/images/free-robux-group-payouts_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/how-to-hack-models-into-roblox-t-shirts_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://greenoase.be/images/how-to-hack-roblox-for-robux-2021-april_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
    • http://greenoase.be/images/how-to-make-your-roblox-shirt-free_GM431946152.pdfIn PDF document text
    • http://greenoase.be/images/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D75 21724 bytes
SHA-256: f57ac70fdce11d018c901308608d3c4a233b5de1040fa61af068e9a6df87df21
font_01_sfnt_off00005d38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D38 18024 bytes
SHA-256: ae8e9e7bdedeb0219c214c271fa7935e3d50c3d8e4c274774e7a90e4006841d3

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